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发明公开
CN104231144A 聚丙烯酸系吸水性树脂粉末及其制造方法 有权

聚丙烯酸系吸水性树脂粉末及其制造方法
摘要：
本发明涉及一种聚丙烯酸系吸水性树脂粉末，其具有90以上吸水速度指数和0.6～0.8[g/cm3]的体积比重，所述吸水速度指数以下述式规定：吸水速度指数＝FSR[g/g/sec]×体积比重[g/cm3]×重均粒径[μm]。本发明还涉及聚丙烯酸系吸水性树脂粉末的制造方法，通过该制造方法可以高效率地制造高吸水速度的吸水性树脂，不会抑制卫生用品等的吸液特性。
摘要（英）：

The invention relates to a polyacrylic water-absorbent resin powder having the the water-absorbent speed index of more 90 and the volume specific gravity of 0.6-0.8[g/cm<3>]. The water-absorbent speed index is defined according to the following formula: the water-absorbent speed index=FSR[g/g/sec]*volume specific gravity[g/cm<3>]*weight average particle diameter[[mu]m]. The invention also relates to a method for producing the polyacrylic water-absorbent resin powder, and the producing method can efficiently produce water-absorbent resin having a high water-absorbent speed and cannot suppress the liquid absorption property of a sanitary product and the like.

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